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Table 1.

OH megamaser observation parameters for IRAS 02524+2046.

Observation date 11 and 12, August 2023
Observed frequency range 1000−1500 MHz
Effective frequency range 1050−1450 MHz
Beam size ∼2.8′ − 2.9′@1420 MHz
Polarization products XX, YY, Re[X*Y], Im[X*Y]
Channel number 1024 K
Sampling time 0.5 s
Integration time 110 minutes

Redshift of IRAS 02524+2046 0.1814 ± 0.0002
Rest frequencies of the four OH lines 1612.2310, 1665.4018, 1667.3590, 1720.5300 MHz
Observed frequencies* 1364.6783, 1409.6850, 1411.3416, 1456.3484 MHz

Notes. Redshift derived from optical spectrophotometry (Darling & Giovanelli 2006). Rest frequencies of the four OH transitions were taken from https://pml.nist.gov/cgi-bin/micro/table5/start.pl. *Observed frequencies were calculated using their rest frequencies and the galaxy redshift.

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